WO2018034110A1 - ガラス管の製造方法 - Google Patents

ガラス管の製造方法 Download PDF

Info

Publication number
WO2018034110A1
WO2018034110A1 PCT/JP2017/026714 JP2017026714W WO2018034110A1 WO 2018034110 A1 WO2018034110 A1 WO 2018034110A1 JP 2017026714 W JP2017026714 W JP 2017026714W WO 2018034110 A1 WO2018034110 A1 WO 2018034110A1
Authority
WO
WIPO (PCT)
Prior art keywords
glass tube
hole
tube
burner
glass
Prior art date
Application number
PCT/JP2017/026714
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
佐藤　雅彦
Original Assignee
日本電気硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to CN201780046819.3A priority Critical patent/CN109476523B/zh
Priority to EP17841338.1A priority patent/EP3502066B1/de
Priority to US16/321,458 priority patent/US11390553B2/en
Publication of WO2018034110A1 publication Critical patent/WO2018034110A1/ja

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/18—Re-forming and sealing ampoules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/043—Heating devices specially adapted for re-forming tubes or rods in general, e.g. burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/057—Re-forming tubes or rods by fusing, e.g. for flame sealing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/09—Reshaping the ends, e.g. as grooves, threads or mouths
    • C03B23/099—Reshaping the ends, e.g. as grooves, threads or mouths by fusing, e.g. flame sealing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/06—Cutting or splitting glass tubes, rods, or hollow products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00—Details of machines or methods for cleaning hollow articles
    • B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
    • B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
    • B08B2209/032—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces by the mechanical action of a moving fluid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Definitions

  • the present invention relates to a method for manufacturing a glass tube.
  • a glass tube in which one end of a glass tube having both ends is sealed and a through-hole is formed in a tube wall on one end side of this glass tube is used (patent) Reference 1).
  • Such a glass tube is manufactured by forming a through hole in a tube wall on one end side of the glass tube after sealing an opening at one end of the glass tube, as disclosed in Patent Document 1.
  • This invention is made
  • the objective is improving the cleanliness
  • An object of the present invention is to provide a method of manufacturing a glass tube that makes it possible.
  • a method of manufacturing a glass tube that solves the above problems includes a step of forming a through hole in a tube wall on the first end side of a glass tube having openings at both ends including a first end and a second end, and the through hole. Forming a sealing portion by thermally processing a predetermined portion from the first end of the glass tube to the through hole.
  • the sealing portion is formed after the through hole is formed, it is possible to discharge foreign matters generated during the formation of the through hole from the opening at the first end of the glass tube.
  • the through hole is formed while air is blown into the glass tube from an opening at the second end of the glass tube toward an opening at the first end of the glass tube. It is preferable.
  • the through hole is formed using a burner in a state in which the glass tube is supported in a posture in which the tube axis of the glass tube is horizontal or in a posture in which the first end of the glass tube is upward. It is preferable to be performed.
  • the volatile substance generated when the through hole is formed in the glass tube using the burner is easily discharged from the opening at the first end of the glass tube.
  • the through hole is preferably formed using a burner using a mixed gas of oxygen and hydrogen as a fuel, and the burner has a gap between the nozzle tip of the burner and the glass tube. It is preferable to arrange and use so that it may become 3 mm or more.
  • the time required to form the through hole in the glass tube can be shortened by using a mixed gas of oxygen and hydrogen as fuel for the burner. Furthermore, by forming the through hole in the glass tube by separating the burner from the glass tube so that the distance between the tip of the nozzle of the burner and the glass tube is 3 mm or more, a foreign matter (volatile substance) generated during the formation of the through hole Can be prevented from adhering to the nozzle tip of the burner.
  • the glass tube is preferably used for a pharmaceutical container. Since the medical container is required to have high cleanliness, it is preferable to manufacture using the glass tube.
  • the present invention it is possible to enhance the cleanliness of the inside of the glass tube in which one end of the tube portion is sealed and a through hole is provided in the tube wall on the one end side.
  • a glass tube 11 to be manufactured includes a tube portion 12 having both ends.
  • the glass tube 11 includes a sealing portion 13 located at one end of the tube portion 12 and an opening 14 located at the other end of the tube portion 12.
  • a through hole 15 is formed in the tube wall of the tube portion 12 on the sealing portion 13 side.
  • the glass tube 11 is manufactured from a glass tube 16 having both ends opened.
  • the method for manufacturing the glass tube 11 includes a through-hole forming step for forming the above-described through-hole 15 in the glass tube 16 and a sealing-portion forming step for forming the above-described sealing portion 13 in the glass tube 16.
  • the glass tube 16 subjected to the through-hole forming step has openings 17 and 18 at both ends including a first end 16a and a second end 16b, respectively.
  • a straight tube shaped from a molten glass by using the Danner method or the down draw method (bellow method) and cut to a predetermined length can be used.
  • the through hole 15 is formed in the tube wall on the first end 16a side of the glass tube 16.
  • the through hole 15 is formed using the burner 19.
  • the burner 19 includes a fuel gas nozzle 20 that ejects the fuel gas FG toward the glass tube 16.
  • the through-hole forming step it is preferable to form the through-hole 15 in a state where the glass tube 16 is supported in a posture in which the tube axis of the glass tube 16 is horizontal or a posture in which the first end 16a of the glass tube 16 is upward.
  • the support portion 21 that supports the glass tube 16 is used in a posture in which the tube axis of the glass tube 16 is horizontal.
  • the burner 19 is arrange
  • the combustion type of the burner 19 may be a premixing type in which the fuel gas FG and air are premixed and burned, or a diffusion mixing type in which the fuel gas FG and air are burned while being diffused and mixed (first) Mixed type).
  • a complete premixing type in which the premixed air is larger than the theoretical air amount or a partial premixing type in which the premixed air is smaller than the theoretical air amount may be used.
  • a mixed gas of combustible gas and auxiliary combustible gas is preferably used.
  • the combustible gas include hydrogen, LPG (liquefied petroleum gas), and LNG (liquefied natural gas).
  • Examples of the auxiliary gas include oxygen.
  • the fuel gas FG is preferably a mixed gas of oxygen and hydrogen. In this case, since the flame temperature is high, even if the nozzle tip 20a of the fuel gas nozzle 20 of the burner 19 is moved away from the glass tube 16, it penetrates in a relatively short time. Holes 15 can be formed.
  • the volume ratio of hydrogen to oxygen in the mixed gas is preferably 1 or more and 3 or less.
  • the distance D between the nozzle tip 20a and the glass tube 16 in the fuel gas nozzle 20 of the burner 19 is preferably 3 mm or more, more preferably 5 mm or more, and further preferably 7 mm or more. As the distance D increases, foreign matter such as fumes generated when the through holes 15 are formed is less likely to adhere to the nozzle tip 20a. On the other hand, the distance D is preferably 15 mm or less, and more preferably 12 mm or less. As the distance D decreases, the time required to form the through holes 15 in the glass tube 16 can be shortened.
  • the interval D is preferably in the range of 3 mm or more and 15 mm or less, More preferably, it is the range of 5 mm or more and 15 mm or less, More preferably, it is the range of 7 mm or more and 12 mm or less.
  • test Example 1 a test example in which the through hole 15 is formed by changing the distance D in the through hole forming step will be described.
  • the through-hole 15 was formed in the glass tube 16 using a mixed gas of oxygen and hydrogen as the fuel gas FG.
  • the distance D between the nozzle tip 20a and the glass tube 16 in the fuel gas nozzle 20 is set to 3.0 mm, 5.0 mm, 7.0 mm, 10.0 mm, 12.0 mm, or 15.0 mm.
  • the time T required from the irradiation of the glass tube 16 to the formation of the through hole 15 was measured.
  • Test Example 1 the volume ratio of hydrogen to oxygen in the fuel gas FG (mixed gas) is set to 2, the flow rate of the fuel gas FG is set to 2.0 L / min, and the fuel gas nozzle 20 has an inner diameter of 0.4 mm.
  • the outer diameter of the glass tube 16 was 16 mm, and the thickness of the tube wall was 1.0 mm.
  • the through hole 15 was formed in the glass tube 16 using a mixed gas of LNG and oxygen as the fuel gas FG.
  • the time required for the through hole 15 to be formed after the distance D between the nozzle tip 20a of the fuel gas nozzle 20 and the glass tube 16 is set to 3.0 mm and the glass tube 16 is irradiated with flame. T was measured.
  • the volume ratio of oxygen to LNG in the fuel gas FG (mixed gas) is set to 2.5 to 2.6
  • the flow rate of the fuel gas FG is set to 2.0 L / min
  • the inner diameter is 1 A 0.0 mm fuel gas nozzle 20 was used.
  • the outer diameter of the glass tube 16 was 16 mm, and the thickness of the tube wall was 1.0 mm.
  • FIG. 3 shows the relationship between the distance D and the time T required for the through hole 15 to be formed after the glass tube 16 is irradiated with flame in Test Example 1 and Test Example 2. .
  • Test Example 1 it can be seen that the through-hole 15 can be formed in a shorter time than Test Example 2 even if the distance D is made larger.
  • FIG. 4 shows the relationship between the distance D and the diameter (hole diameter HD) of the through hole 15 formed in the glass tube 16 in Test Example 1 described above. From the results of Test Example 1, it is understood that the hole diameter HD of the through hole 15 formed in the glass tube 16 can be changed by changing the distance D.
  • the flow rate of the fuel gas FG ejected from the fuel gas nozzle 20 can be appropriately adjusted according to, for example, the inner diameter (nozzle diameter) of the fuel gas nozzle 20.
  • the flow rate of the fuel gas FG ejected from the fuel gas nozzle 20 is preferably 1.5 L / min or more, more preferably 1.7 L / min or more, and further preferably 1.9 L / min or more.
  • the flow rate of the fuel gas FG ejected from the fuel gas nozzle 20 is to prevent the tube wall of the glass tube 16 facing the through hole 15 from being inadvertently melted after the through hole 15 is formed in the glass tube 16. From the viewpoint, it is preferably 3.0 L / min or less, more preferably 2.5 L / min or less.
  • the inner diameter (nozzle diameter) of the fuel gas nozzle 20 used in the through hole forming step is preferably 0.2 mm or more. As the inner diameter of the fuel gas nozzle 20 is larger, the inner diameter of the through hole 15 of the glass tube 16 can be increased.
  • the inner diameter (nozzle diameter) of the fuel gas nozzle 20 is preferably 1.0 mm or less from the viewpoint of suppressing an excessive increase in the inner diameter of the through hole 15 of the glass tube 16.
  • the through hole forming step air is blown into the glass tube 16 from the opening 18 at the second end 16 b of the glass tube 16 toward the opening 17 at the first end 16 a of the glass tube 16. It is preferable to form the through hole 15.
  • a blowing nozzle 22 that jets the blowing gas VG from the outside of the glass tube 16 toward the opening 18 of the second end 16 b of the glass tube 16 is used.
  • the blowing nozzle 22 may be inserted into the glass tube 16 through the opening 18 at the second end 16b of the glass tube 16 and used. Air or inert gas can be suitably used as the blowing gas VG.
  • the sealing part formation process in the manufacturing method of the glass tube 11 by carrying out the heat processing of the predetermined location from the 1st end 16a of the glass tube 16 to the through-hole 15 after a through-hole formation process.
  • the sealing part 13 is formed. More specifically, in the sealing part forming step, while rotating the glass tube 16, the space between the first end 16a of the glass tube 16 and the through hole 15 is heated along the circumferential direction, and the heated portion of the glass tube 16 is heated.
  • the sealing portion 13 is formed by applying an external force to the glass tube 16 so that both side portions sandwiched therebetween are separated from each other.
  • the sealing part forming step can be performed while conveying the glass tube 16 by using, for example, the line burner 23.
  • the glass tube 16 is arranged so that the tube axis of the glass tube 16 is orthogonal to the longitudinal direction of the flame 23 a of the line burner 23, and the flame of the line burner 23 is rotated while the glass tube 16 is rotated.
  • the glass tube 16 is conveyed along the longitudinal direction.
  • an external force is applied to the glass tube 16 so that both sides of the heated portion of the glass tube 16 are separated from each other. Thereby, it deform
  • the sealing portion 13 may be formed by heating the glass tube 16 while rotating it at a fixed position and applying an external force to the glass tube 16. Good.
  • the glass tube 11 (the glass article having the tube portion 12, the sealing portion 13, the opening portion 14, and the through-hole 15) manufactured through the through-hole forming step and the sealing portion forming step is a glass container.
  • the glass container includes a step of sequentially cutting the glass tube 11 by placing the glass tube 11 so that the sealing portion 13 side is on the upper side and heating the position of a predetermined length from the opening 14 of the glass tube 11. It is obtained by the manufacturing method containing.
  • the through hole 15 of the glass tube 11 serves as a vent for adjusting the pressure and temperature in the tube portion 12 of the glass tube 11.
  • the glass tube 11 is preferably used for the purpose of manufacturing a glass container that requires relatively high cleanliness.
  • Examples of the use of the glass tube 11 include a use for producing a medical container and a food container, and the glass tube 11 is particularly preferably used for producing a pharmaceutical container.
  • Examples of the medical container include a syringe, a vial, and an ampoule.
  • the glass of the glass tube 11 used for manufacture of a pharmaceutical container is, for example, borosilicate glass.
  • the outer diameter of the tube part 12 is, for example, in the range of 5 mm or more and 75 mm or less.
  • the thickness (thickness of the tube wall of the glass tube 16) is, for example, in the range of 0.3 mm or more and 3.0 mm or less.
  • the manufacturing method of the glass tube 11 is equipped with the through-hole formation process and the sealing part formation process.
  • the through-hole forming step the through-hole 15 is formed in the tube wall on the first end 16a side of the glass tube 16 having openings 17 and 18 at both ends including the first end 16a and the second end 16b, respectively.
  • the sealing portion forming step the sealing portion 13 is formed by thermally processing a predetermined portion from the first end 16a of the glass tube 16 to the through hole 15 after the through hole forming step.
  • the sealing portion 13 is formed after the through hole 15 is formed, the foreign matter generated when the through hole 15 is formed can be discharged from the opening portion 17 of the first end 16 a of the glass tube 16. It becomes possible. As a result, it becomes possible to improve the cleanliness inside the glass tube 11.
  • the through hole 15 is blown to the inside of the glass tube 16 from the opening 18 at the second end 16 b of the glass tube 16 toward the opening 17 at the first end 16 a of the glass tube 16. Forming.
  • the foreign matter generated when the through hole 15 is formed can be forcibly discharged from the opening 17 of the first end 16a of the glass tube 16. Therefore, the cleanliness inside the glass tube 11 can be further improved.
  • the through-hole 15 is formed using the burner 19 in a state where the glass tube 16 is supported in a posture in which the tube axis of the glass tube 16 is horizontal or in a posture in which the first end 16a of the glass tube 16 is upward. Are preferred.
  • the fuel gas FG of the burner 19 is preferably a mixed gas of oxygen and hydrogen, and the burner 19 is arranged so that the distance D between the nozzle tip 20a of the burner 19 and the glass tube 16 is 3 mm or more. It is preferably used.
  • the time required to form the through hole 15 in the glass tube 16 can be shortened by using a mixed gas of oxygen and hydrogen as the fuel gas FG of the burner 19. Further, by forming the through hole 15 in the glass tube 16 by separating the burner 19 from the glass tube 16 so that the distance D between the nozzle tip 20a of the burner 19 and the glass tube 16 is 3 mm or more. It is possible to prevent foreign matters (volatile substances) generated during the deposition from adhering to the nozzle tip 20a of the burner 19. That is, the frequency of replacing or cleaning the nozzles of the burner 19 can be reduced. For this reason, it becomes possible to increase the productivity of the glass tube 11 or reduce the manufacturing cost of the glass tube 11.
  • the use of the glass tube 11 produced by the method of the present invention is preferably a pharmaceutical container. Since the medical container is required to have high cleanliness, it is preferable to manufacture using the glass tube 11.
  • the above embodiment may be modified as follows. -Instead of the burner 19, the through-hole 15 can also be formed in the glass tube 16 using a laser beam or a drill, for example.
  • -Formation of the through-hole 15 may be performed by omitting air blowing into the glass tube 16. For example, when the foreign matter generated when forming the through hole 15 in the glass tube 16 is likely to descend, the through hole 15 is supported with the glass tube 16 supported in a posture in which the second end 16b of the glass tube 16 is upward. It may be formed.
PCT/JP2017/026714 2016-08-16 2017-07-24 ガラス管の製造方法 WO2018034110A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201780046819.3A CN109476523B (zh) 2016-08-16 2017-07-24 玻璃管的制造方法
EP17841338.1A EP3502066B1 (de) 2016-08-16 2017-07-24 Verfahren zur herstellung von glasrohren
US16/321,458 US11390553B2 (en) 2016-08-16 2017-07-24 Glass tube production method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-159658 2016-08-16
JP2016159658A JP6801289B2 (ja) 2016-08-16 2016-08-16 ガラス管の製造方法

Publications (1)

Publication Number Publication Date
WO2018034110A1 true WO2018034110A1 (ja) 2018-02-22

Family

ID=61196592

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/026714 WO2018034110A1 (ja) 2016-08-16 2017-07-24 ガラス管の製造方法

Country Status (5)

Country Link
US (1) US11390553B2 (de)
EP (1) EP3502066B1 (de)
JP (1) JP6801289B2 (de)
CN (1) CN109476523B (de)
WO (1) WO2018034110A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111345657A (zh) * 2018-12-24 2020-06-30 肖特玻璃科技(苏州)有限公司 高强度饮用器具
CN110372185B (zh) * 2019-06-27 2024-04-02 浙江伊水家居用品有限公司 双层封口机
JP2021095321A (ja) 2019-12-19 2021-06-24 日本電気硝子株式会社 ガラス物品の製造方法、及びガラス物品の製造装置
CN112159085B (zh) * 2020-09-15 2022-05-27 中建材玻璃新材料研究院集团有限公司 一种硼硅玻璃管切割封口一体化设备及工艺方法
EP4201896A1 (de) * 2021-12-22 2023-06-28 Schott Ag Glasrohr für pharmazeutische behälter und verfahren zur herstellung eines glasrohrs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212870A (en) * 1962-04-02 1965-10-19 Owens Illinois Glass Co Method for forming apertures in hollow glass articles
JPH04265241A (ja) * 1990-11-08 1992-09-21 Ppg Ind Inc ガラスにパンチ穴を形成する方法および装置
JP2004010475A (ja) * 2002-06-05 2004-01-15 Carl-Zeiss-Stiftung 管半製品、及び管半製品からガラス容器を製造する方法
WO2013111432A1 (ja) * 2012-01-23 2013-08-01 日本電気硝子株式会社 ガラス管の清浄切断装置と清浄切断方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379343A (en) * 1942-06-10 1945-06-26 Frank J Cozzoli Tube sealing machine
JP3637834B2 (ja) * 2000-03-06 2005-04-13 住友電気工業株式会社 ガラスパイプの接合方法及び光ファイバ母材用ガラスパイプの製造方法
JP3943423B2 (ja) * 2002-03-27 2007-07-11 東芝セラミックス株式会社 シリカガラス管自動穿孔装置
DE10332176B4 (de) * 2002-07-24 2007-04-05 Schott Ag Verfahren zur Verminderung der Kontamination mit Alkaliverbindungen der Innenoberfläche von aus Glasrohr hergestellte Hohlkörpern aus Glas und Behälter, sowie dessen Verwendung für medizinische Zwecke
JP2004099404A (ja) * 2002-09-12 2004-04-02 Maeda Kogyo Kk 硝子管の成形方法
JP2010248009A (ja) * 2009-04-13 2010-11-04 Ckd Corp ガラス管加熱装置及びランプ製造装置
DE102013107607B4 (de) * 2013-07-17 2017-09-21 Schott Ag Verfahren zum Herstellen von Glasfläschchen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212870A (en) * 1962-04-02 1965-10-19 Owens Illinois Glass Co Method for forming apertures in hollow glass articles
JPH04265241A (ja) * 1990-11-08 1992-09-21 Ppg Ind Inc ガラスにパンチ穴を形成する方法および装置
JP2004010475A (ja) * 2002-06-05 2004-01-15 Carl-Zeiss-Stiftung 管半製品、及び管半製品からガラス容器を製造する方法
WO2013111432A1 (ja) * 2012-01-23 2013-08-01 日本電気硝子株式会社 ガラス管の清浄切断装置と清浄切断方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3502066A4 *

Also Published As

Publication number Publication date
EP3502066B1 (de) 2023-12-06
US11390553B2 (en) 2022-07-19
EP3502066A4 (de) 2020-03-25
US20210284566A1 (en) 2021-09-16
CN109476523A (zh) 2019-03-15
CN109476523B (zh) 2021-10-15
EP3502066A1 (de) 2019-06-26
JP2018027864A (ja) 2018-02-22
JP6801289B2 (ja) 2020-12-16

Similar Documents

Publication Publication Date Title
WO2018034110A1 (ja) ガラス管の製造方法
JP5771353B2 (ja) 医療用ガラス容器の製造方法
US11028002B2 (en) Apparatus and method for thermally treating an annular region of an inner surface of a glass container produced from a borosilicate glass tube
KR102527850B1 (ko) 용융 유리 컨디셔닝 장치 및 방법
US11780759B2 (en) Process of producing glass vessel
WO2016171196A1 (ja) クラックの発生が抑制された医療用ガラス容器の製造方法
JP7452003B2 (ja) ガラス物品の製造装置、及びガラス物品の製造方法
US10683226B2 (en) Bell assemblies for glass tubing manufacturing and glass tubing manufacturing apparatuses comprising the same
JP2018080065A (ja) ガラス管の製造方法
US20190322565A1 (en) Method and apparatus for producing hollow glass body products, and hollow glass body products and their use
JP6631380B2 (ja) ガラス材の製造方法及び製造装置
JP7430187B2 (ja) ガラス管を加熱および冷却する装置および方法
US11034608B2 (en) Method of forming conical shape on glass rod, and glass rod
KR100712830B1 (ko) 유리관 절단 방법 및 이를 수행하기 위한 유리관 절단 장치
JP6579116B2 (ja) ガラス溶解用バーナ、ガラス溶解炉、ガラス溶解方法及びガラス製造方法
US20230030387A1 (en) Method for producing glass article and device for producing glass article
WO2023171751A1 (ja) 石英部材の製造方法、及びシリカ粉の溶射コーティング方法
JP2022080553A (ja) ガラス物品の製造方法
US770222A (en) Manufacture of electric incandescent lamps.
JP2018024544A (ja) 光ファイバ母材の製造方法及び製造装置
JP2005112674A (ja) 陰極線管用ガラスバルブの製造方法及びその装置
JP2019214482A (ja) 光ファイバの線引き方法
JP2022023521A (ja) ガラス物品の製造方法
JP2010013297A (ja) ガラス製造方法及びガラス製造装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17841338

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2017841338

Country of ref document: EP

Effective date: 20190318